Charged ligand-driven photoluminescent sensing enhancements in terbium-modified two-dimensional metal–organic frameworks

Abstract

Charged ligands and terbium ions are post-synthetically coordinated in a two-dimensional, dispersible, and water-stable zirconium-based metal–organic framework (MOF). MOF molecular sheets with positively charged and negatively charged ligands provide distinct electrostatic interactions to ionic analytes, thereby enhancing the photoluminescent detection of nitrite and ferric ions in aqueous media, respectively.